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A Mitre Shooting Block

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A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 18:07

In his recent excellent posts: "A Walnut workout - with added box - finished!", AndyT mentions and shows the use of a mitre shooting block. This reminded me that I had seen a design for such a device in an old book: "How to Make Woodwork Tools" by Charles Hayward. I looked it up and decided to make a half scale version, with jaws opening to 4". WIP photos and description to follow.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 18:17

I began with a piece of elm, cut into strips and carefully planed to make the base frame and the runners for the moving jaw. Mr. Hayward writes: "Made in this way the grain of all the parts runs in the same direction, and if any shrinkage takes place it will affect all in the same way so there will not be any danger of the block either binding or working loose.". I glued the parts together and added screws for reinforcement.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 18:21

I made an end block of beech, drilled and tapped it to accept a wooden screw, then attached it to the base frame with screws and glue.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 18:36

The jaws were made as a single block, constructed by gluing strips of beech in layers.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 18:38

I sliced up the composite block to make the fixed and moving jaws.
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Re: A Mitre Shooting Block

Postby NickM » 19 Sep 2021, 19:12

These do look like a useful tool. I’ll be following with interest.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 20:00

The fixed jaw is attached to the base frame with glue and screws. I drilled small holes in the base frame in the desired positions of the screws. It was a bit of a challenge to hold the jaw firmly and accurately in position against the base frame to allow the holes to be "spotted" through. I came up with a strange arrangement of cramps and ty-raps :) I enlarged the holes to accept the screws. The runners for the moving jaw were attached in a similar way.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 20:02

I made brass parts to interface the wooden screw to the moving jaw.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 20:06

Here are the jaws in place on the base frame.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 20:09

The "keeper plates" are let into the side of the moving jaw.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 20:12

I turned the wooden screw and its handle in one piece from an unknown reddish hardwood cut from a brush handle. It was a rather "whippy" thing to turn. A threadbox was used to cut the thread.
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 20:20

Here it is completed. There are spacer pieces under the ends of the base frame and a "keeper" piece is attached from underneath to the runners of the moving jaw to prevent it from lifting in use. Finally a piece of oak was attached by screws underneath to allow it to be held in the vice.
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Re: A Mitre Shooting Block

Postby MattS » 19 Sep 2021, 20:41

It’s a beautiful thing, how do you use it without planing the jaws?
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Re: A Mitre Shooting Block

Postby rxh » 19 Sep 2021, 20:54

Thanks MattS. To quote Charles Hayward again: "... pieces of thin card can be glued to all the faces. These can be renewed at any time, and save the face of the blocks from being damaged by the plane.".
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Re: A Mitre Shooting Block

Postby Blackswanwood » 19 Sep 2021, 20:58

Thanks for posting this. I was intrigued when I saw it on AndyT’s post.
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Re: A Mitre Shooting Block

Postby Malc2098 » 19 Sep 2021, 21:48

Nice.
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Re: A Mitre Shooting Block

Postby AndyT » 20 Sep 2021, 07:00

Brilliant! And you've gone to the best source for the instructions. I'm sure yours will be bang on 45° and 90° and be really useful.

There's another feature of the 90° side that I didn't mention, using it to saw tenon shoulders. There used to be a special vice used by chairmakers, in conjunction with a saw with the blade attached to a flat block. A chair leg or frame side is clamped in the vice and the saw is run round it, cutting even shoulders to define a tenon. This is especially useful on curved pieces that need a square tenon.
I think there's a diagram in Salaman or maybe in Roubo. Anyway, you can use the square side to do something similar. Or you could use that mitre saw - is it an old American one?

Edited to add pic of armchair saw

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Re: A Mitre Shooting Block

Postby Andyp » 20 Sep 2021, 10:07

I am sure my father has a couple of those in the garage. Not sure if my grandfather would have made them or bought them. I’ll try and remember to take some photos next month if I get over there.
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Re: A Mitre Shooting Block

Postby Stuart » 20 Sep 2021, 10:26

Nice work. I was offered one of these a while ago but thought no thanks.

Now I can't find one for love or money! I have neither the skills nor the equipment to make my own.
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Re: A Mitre Shooting Block

Postby Woodbloke » 20 Sep 2021, 10:38

A slightly different version of the same thing, but this one is able to shoot a very wide board:

1263A400-F292-4AF4-9862-6FB514B5F768.jpeg
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I pinched this particular design off Mitch Peacock, an Instagrammer and UToober. Very useful for making mitred boxes etc - Rob

Edit - I’ve cunningly made this one adjustable, so the angle shot can be plus or minus 45deg by a smidge - Rob
Last edited by Woodbloke on 20 Sep 2021, 10:44, edited 1 time in total.
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Re: A Mitre Shooting Block

Postby PeteW » 20 Sep 2021, 10:43

rxh: very nicely done :eusa-clap:

I managed to acquire one - identical to AndyT's - from the well-known auction site years ago, when old tools were still affordable.

A while back I came across the Matt Estlea woodworking videos (recommended) and he has a simpler device for smaller, chisel-sized work. All explained here:
https://freeonlinewoodworkingschool.com/cutting-mitres/
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Re: A Mitre Shooting Block

Postby rxh » 20 Sep 2021, 21:11

AndyT wrote:Brilliant! And you've gone to the best source for the instructions. I'm sure yours will be bang on 45° and 90° and be really useful.

There's another feature of the 90° side that I didn't mention, using it to saw tenon shoulders. There used to be a special vice used by chairmakers, in conjunction with a saw with the blade attached to a flat block. A chair leg or frame side is clamped in the vice and the saw is run round it, cutting even shoulders to define a tenon. This is especially useful on curved pieces that need a square tenon.
I think there's a diagram in Salaman or maybe in Roubo. Anyway, you can use the square side to do something similar. Or you could use that mitre saw - is it an old American one?

Edited to add pic of armchair saw

IMG_20210920_085538_DRO.jpg


Thanks Andy - I have never heard of an armchair saw. I may have to make one now :)
The mitre saw is a Nobex, from Sweden, dating from the 1970s (I think). The saw can be re-sharpened but its plastic handle disintegrated and so I made a wooden replacement.
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Re: A Mitre Shooting Block

Postby rxh » 20 Sep 2021, 21:13

Andyp wrote:I am sure my father has a couple of those in the garage. Not sure if my grandfather would have made them or bought them. I’ll try and remember to take some photos next month if I get over there.


Thanks Andy - I would be interested to see some photos.
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Re: A Mitre Shooting Block

Postby rxh » 20 Sep 2021, 21:20

Stuart wrote:Nice work. I was offered one of these a while ago but thought no thanks.

Now I can't find one for love or money! I have neither the skills nor the equipment to make my own.


Thanks Stuart - it is not that difficult and most of the work can be done with common woodwork tools. A threaded steel rod and nut can be used instead of the wooden screw, thus avoiding the need for a thread box and tap.
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Re: A Mitre Shooting Block

Postby rxh » 20 Sep 2021, 21:23

Woodbloke wrote:A slightly different version of the same thing, but this one is able to shoot a very wide board:

1263A400-F292-4AF4-9862-6FB514B5F768.jpeg


I pinched this particular design off Mitch Peacock, an Instagrammer and UToober. Very useful for making mitred boxes etc - Rob

Edit - I’ve cunningly made this one adjustable, so the angle shot can be plus or minus 45deg by a smidge - Rob


Thanks Rob. That's and interesting design - I shall study it carefully.
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